ADAPTIVE FILTERS WITH TMS320C25/TMS320C30 (CONTAINS SCANNED TEXT)

Adaptive filtering techniques are necessary considerations when a specific signal output is desired but the coefficients of that filter cannot be determined at the outset. Sometimes this is because of changing line or transmission conditions. An adaptive filter is one which contains coefficients that are updated by an adaptive algorithm to optimize filter response to the desired performance criterion.

Two devices, the TMS320C25 and TMS320C30, combine the power, high speed, flexibility and architecture optimized for adaptive signal processing.

This book discussed the topic of adaptive filter implementations as they apply to these two processors.

The book begins with a description of the two parts of an adaptive fiter: the filter and the adaptive algorithm. The book goes on to discuss:

- The applications of adaptive filters (including adaptive prediction, equalization, noise cancellation and echo cancellation)

- The implementations of adaptive structures and algorithms (including transversal structure with the LMS algorithm, symmetric transversal structure, lattice structure, and modified LMS algorithms

- Implementation considerations (including dynamic range constraint, finite precision errors, and design issues)

- Software development (assembly function libraries, C function libraries, development process and environment)

The book also contains:

- Tables showing transversal structure, symmetric transversal structure and lattice structure for both the TMS320C25 and TMS320C30 processors

- Extensive references

- Multiple appendices of sample code for both the TMS320C25 and TMS320C30 processors

Go to the Engineering Design Center to locate information on other TI Semiconductor devices.

(c) Copyright 1998 Texas Instruments Incorporated. All rights reserved.
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